WORLD HISTORY

Detailed explanation-1: -The Xia dynasty was the first of many ancient Chinese ruling houses, thought to exist from around 2070 B.C.E. until 1600 B.C.E. Yet the actual existence of this dynasty and culture has been debated.

Detailed explanation-2: -The Xia Dynasty (2070–1600 BC) was the first recorded dynasty in China, however the records and its existence are disputed. However, most Chinese people would say that their ancestors originated in an area near the east coast of China around Beijing and Tianjin and the Yellow River.

Detailed explanation-3: -Yu the Great () was a legendary king in ancient China who was famed for his introduction of flood control, his establishment of the Xia dynasty which inaugurated dynastic rule in China, and his upright moral character.

Detailed explanation-4: -The main achievement of the Qin is the fact that it unified China, creating the first dynasty ruled by the first emperor Qin Shi Huang. Other well-known achievements is the creation of the Great Wall and a large army of Terracotta Warriors.

Detailed explanation-5: -The Xi Xia dynasty was finally conquered by the Mongol troops of Genghis Khan in 1227.